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2 Document Name: MC35i Terminal Hardware Interface Description Version: 02.00a Date: November 17, 2008 DocId: Status: MC35i_T_HD_v02.00an GENERAL NOTES THE USE OF THE PRODUCT INCLUDING THE SOFTWARE AND DOCUMENTATION (THE "PRODUCT") IS SUBJECT TO THE RELEASE NOTE PROVIDED TOGETHER WITH PRODUCT. IN ANY EVENT THE PROVISIONS OF THE RELEASE NOTE SHALL PREVAIL. THIS DOCUMENT CONTAINS INFORMATION ON CINTERION PRODUCTS. THE SPECIFICATIONS IN THIS DOCUMENT ARE SUBJECT TO CHANGE AT CINTERION'S DISCRETION. CINTERION WIRELESS MODULES GMBH GRANTS A NON-EXCLUSIVE RIGHT TO USE THE PRODUCT. THE RECIPIENT SHALL NOT TRANSFER, COPY, MODIFY, TRANSLATE, REVERSE ENGINEER, CREATE DERIVATIVE WORKS; DISASSEMBLE OR DECOMPILE THE PRODUCT OR OTHERWISE USE THE PRODUCT EXCEPT AS SPECIFICALLY AUTHORIZED. THE PRODUCT AND THIS DOCUMENT ARE PROVIDED ON AN "AS IS" BASIS ONLY AND MAY CONTAIN DEFICIENCIES OR INADEQUACIES. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, CINTERION WIRELESS MODULES GMBH DISCLAIMS ALL WARRANTIES AND LIABILITIES. THE RECIPIENT UNDERTAKES FOR AN UNLIMITED PERIOD OF TIME TO OBSERVE SECRECY REGARDING ANY INFORMATION AND DATA PROVIDED TO HIM IN THE CONTEXT OF THE DELIVERY OF THE PRODUCT. THIS GENERAL NOTE SHALL BE GOVERNED AND CONSTRUED ACCORDING TO GERMAN LAW. Copyright Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited. Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved. Copyright Cinterion Wireless Modules GmbH 2008 Trademark notice Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. All other registered trademarks or trademarks mentioned in this document are property of their respective owners. MC35i_T_HD_v02.00an Page 2 of

6 1 Introduction This document describes the hardware of the Cinterion MC35i Terminal. The information is intended for users, developers or manufacturers who design and build cellular applications beyond the standard setup. The scope of this document includes interface specifications, electrical issues and mechanical characteristics of MC35i Terminal. It specifies standards pertaining to wireless applications and outlines requirements that must be adhered to for successful product design. The MC35i Terminal is a compact GSM modem for the transfer of data, voice, SMS and faxes in GSM networks. Industrial standard interfaces and an integrated SIM card reader allow using MC35i Terminal easily as a dual band GSM terminal. The functionality of the Terminal corresponds to the features of the MC35i module. 1.1 References [1] MC35i AT Command Set for MC35i and MC35i Terminal, Version [2] Release Note, Version [3] Application Note 16: Upgrading MC35i Firmware [4] Application Note 24: Application Developers Guide [5] Remote Sat User s Guide [6] GPRS Startup User's Guide [7] Multiplexer User s Guide [8] Multiplexer Driver Developer s Guide for Windows 2000 and Windows XP [9] Multiplexer Driver Installation Guide for Windows 2000 and Windows XP Prior to using the GSM engine carefully read the latest product information provided in the Release Notes. For further information visit the Cinterion Website: MC35i_T_HD_v02.00an Page 6 of

7 1.2 Directives and Standards MC35i Terminal has been approved to comply with the directives and standards listed below. Table 1: Directives 99/05/EC 89/336/EC 73/23/EC 72/245/EC 2004/104/EC 2002/95/EC 2002/96/EC 2003/108/EC Directive of the European Parliament and of the council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (in short referred to as R&TTE Directive 1999/5/EC). The product is labeled with the CE conformity mark Directive on electromagnetic compatibility Directive on electrical equipment designed for use within certain voltage limits (Low Voltage Directive) Automotive EMC Directive Automotive EMC Directive Directive of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS) Directive of the European Parliament and of the Council on waste electrical and electronic equipment (WEEE) Directive of the European Parliament and of the Council of 8 December 2003 amending directive 2002/96/ec on waste electrical and electronic equipment (WEEE) Table 2: Standards of type approval 3GPP TS EN V9.0.2 GCF-CC V EN V1.4.1 EN V1.2.1 Digital cellular telecommunications system (Phase 2); Mobile Station (MS) conformance specification Global System for Mobile communications (GSM); Harmonized standard for mobile stations in the GSM 900 and DCS 1800 bands covering essential requirements under article 3.2 of the R&TTE directive (1999/5/EC) Global Certification Forum - Certification Criteria Candidate Harmonized European Standard (Telecommunications series) Electro Magnetic Compatibility and Radio spectrum Matters (ERM); Electro Magnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common Technical Requirements Electro Magnetic Compatibility and Radio spectrum Matters (ERM); Electro Magnetic Compatibility (EMC) standard for radio equipment and services; Part 7: Specific conditions for mobile and portable radio and ancillary equipment of digital cellular radio telecommunications systems (GSM and DCS) EN Safety of information technology equipment (2000) MC35i_T_HD_v02.00an Page 7 of

9 1.3 Safety precautions The following safety precautions must be observed during all phases of the operation, usage, service or repair of any cellular terminal or mobile incorporating MC35i Terminal. Manufacturers of the cellular terminal are advised to convey the following safety information to users and operating personnel and to incorporate these guidelines into all manuals supplied with the product. Failure to comply with these precautions violates safety standards of design, manufacture and intended use of the product. Cinterion Wireless Modules GmbH assumes no liability for customer failure to comply with these precautions. When in a hospital or other health care facility, observe the restrictions on the use of mobiles. Switch the cellular terminal or mobile off, if instructed to do so by the guidelines posted in sensitive areas. Medical equipment may be sensitive to RF energy. The operation of cardiac pacemakers, other implanted medical equipment and hearing aids can be affected by interference from cellular terminals or mobiles placed close to the device. If in doubt about potential danger, contact the physician or the manufacturer of the device to verify that the equipment is properly shielded. Pacemaker patients are advised to keep their hand-held mobile away from the pacemaker, while it is on. Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it cannot be switched on inadvertently. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communications systems. Failure to observe these instructions may lead to the suspension or denial of cellular services to the offender, legal action, or both. Do not operate the cellular terminal or mobile in the presence of flammable gases or fumes. Switch off the cellular terminal when you are near petrol stations, fuel depots, chemical plants or where blasting operations are in progress. Operation of any electrical equipment in potentially explosive atmospheres can constitute a safety hazard. Your cellular terminal or mobile receives and transmits radio frequency energy while switched on. Remember that interference can occur if it is used close to TV sets, radios, computers or inadequately shielded equipment. Follow any special regulations and always switch off the cellular terminal or mobile wherever forbidden, or when you suspect that it may cause interference or danger. Road safety comes first! Do not use a hand-held cellular terminal or mobile when driving a vehicle, unless it is securely mounted in a holder for handsfree operation. Before making a call with a hand-held terminal or mobile, park the vehicle. Handsfree devices must be installed by qualified personnel. Faulty installation or operation can constitute a safety hazard. MC35i_T_HD_v02.00an Page 9 of

10 SOS IMPORTANT! Cellular terminals or mobiles operate using radio signals and cellular networks cannot be guaranteed to connect in all conditions. Therefore, you should never rely solely upon any wireless device for essential communications, for example emergency calls. Remember, in order to make or receive calls, the cellular terminal or mobile must be switched on and in a service area with adequate cellular signal strength. Some networks do not allow for emergency calls if certain network services or phone features are in use (e.g. lock functions, fixed dialing etc.). You may need to deactivate those features before you can make an emergency call. Some networks require that a valid SIM card be properly inserted in the cellular terminal or mobile. If a power supply unit is used to supply the device, it must meet the demands placed on SELV circuits in accordance with EN The maximum permissible connection length between the device and the supply source should not exceed 3m. According to the guidelines for human exposure to radio frequency energy, an antenna connected to the FME jack of the device should be placed at least 20cm away from human bodies. MC35i_T_HD_v02.00an Page 10 of

17 3.3 The MC35i GSM/GPRS engine The MC35i GSM/GPRS engine is a major functional component of the MC35i Terminal that handles all the processing for audio, signal and data within a GSM/GPRS cellular device. Internal software runs the application interface and the whole GSM and GPRS protocol stack. A UART forms the interface to the Terminal Circuit. Designed to easily provide radio connection for voice and data transmissions it integrates seamlessly with a wide range of GSM/GPRS application platforms and is ideally suited to design and set up innovative cellular solutions with minimum effort. MC35i Terminal supports GPRS multislot class 8 (4 Rx, 1 Tx time slot) and GPRS coding schemes CS-1, CS-2, CS-3 and CS-4. It operates in the frequency bands GSM 900 MHz and GSM 1800 MHz. A GSM baseband processor contains all analog and digital functionality of a cellular radio. Designed to meet the increasing demands of the GSM/PCS/GPRS cellular subscriber market, it supports FR, HR and EFR speech and channel coding without the need for external hardware. The RF part of the GSM engine MC35i is based on a highly integrated single transceiver chip solution. The internal antenna cable connects to the connector type GSC from Murata with a 50Ω impedance. This GSC connector is the ARP (Antenna Reference Point) for type approval measurements as well as for electrical characteristics. Figure 2: MC35i GSM engine MC35i_T_HD_v02.00an Page 17 of

18 3.4 Operating modes The table below briefly summarizes the various operating modes referred to in the following chapters. Table 9: Overview of operating modes Mode Normal operation Power Down Function SLEEP GSM IDLE GSM TALK GPRS IDLE GPRS DATA Various power saving modes set by AT+CFUN command. Software is active to minimum extent. If the Terminal was registered to the GSM network in IDLE mode, it remains, in SLEEP mode, registered and pageable from the BTS. Power saving can be chosen at different levels. The NON-CYCLIC SLEEP mode (AT+CFUN=0) disables the AT interface. The CYCLIC SLEEP mode AT+CFUN=5, 6, 7 and 8 alternatingly activate and deactivate the AT interface to allow permanent access to all AT commands. Software is active. Once registered to the GSM network, paging with BTS is carried out. The Terminal is ready to send and receive. Connection between two subscribers is in progress. Power consumption depends on network coverage individual settings, such as DTX off/on, FR/EFR/HR, hopping sequences, antenna. Module is ready for GPRS data transfer, but no data is currently sent or received. Power consumption depends on network settings and GPRS configuration (e.g. DRX settings) GPRS data transfer in progress. Power consumption depends on network settings (e.g. power control level), uplink / downlink data rates and GPRS configuration (e.g. used multislot settings). Operating voltage applied. Only a voltage regulator in the Power Supply ASIC is active for powering the RTC. Software is not active. The RS-232 interface is not accessible. MC35i_T_HD_v02.00an Page 18 of

20 3.5.1 Power supply and On/Off control The power supply of the MC35i Terminal has to be a single voltage source of V PLUS =8V 30V capable of providing a peak current (pulsed 577ms at T=4.615ms) of about 1.2A at 12V during an active transmission. The uplink burst causes strong ripple (drop) on the power lines. The drop voltage should not exceed 1V, but the absolute minimum voltage during drops must be >7.6V. The MC35i Terminal is protected from supply voltage reversal and overvoltage. An internal fuse that is not removable is intended for electrical safety according to EN An external fast acting fuse 0.4A with melting integral I²t ( )A²s is necessary to use the MC35i Terminal at a 12V or 24V power supply system for vehicles. The power supply must be compliant with the EN60950 guidelines. A switching regulator regulates the input voltage for the internal supply. In POWER DOWN mode the switching regulator is turned off by the On/Off logic. A separate voltage regulator supplies the real time clock (RTC) in the GSM engine. When power fails for >1ms, MC35i Terminal resets or switches off. When power fails for >7s the RTC will be reset. Table 10: Female 6-pole Western plug for power supply, ignition, power down Pin Signal name Use Parameters 1 PLUS Power supply 8V 30V DC, max. 33V for 1 min 2 free PD_IN Signal for POWER DOWN mode U IH 5V for t>3.5s turns the terminal off. U IL <2V and low level for normal operation. 4 IGT_IN Ignition *) U IH 5V Ignition 5V for more than 200ms switches the MC35i Terminal on. Ignition is activated only by a rising edge. The rise time is <20ms 5 free GND Ground 0V Pin assignment: Figure 4: 6-pole Western jack for power supply, ignition, power down free 3 PD_IN 4 IGT_IN 5 free 6 GND Mains adapter: If it fits into the design of your GSM application we recommend the plug-in supply unit used with the type approved Cinterion reference setup. Ordering information can be found in Chapter 7. This 12V mains adapter comes with a 6-pole Western plug and provides an internal connection between IGT_IN pin and PLUS pin for auto ignition (power up). MC35i_T_HD_v02.00an Page 20 of

21 Turn MC35i Terminal on The IGT_IN signal (pin 4) switches the MC35i Terminal on. After start-up, the MC35i Terminal enters the net searching state. The IGT_IN signal is activated when an appropriate power supply unit is plugged to the 6-pole Western jack. While the PD_IN pin (pin3) is not active (voltage <2V) you can start the MC35i Terminal by activating the RS-232 DTR line Reset MC35i Terminal An easy way to reset the MC35i Terminal is entering the command AT+CFUN=x,1. For details on AT+CFUN please see [1]. As an alternative, you can shut down the MC35i Terminal as described in Section and then restart it as described in Section Turn MC35i Terminal off Normal shutdown: To turn off the MC35i Terminal use the AT^SMSO command, rather than disconnecting the mains adapter. This procedure lets the MC35i Terminal log off from the network and allows the software to enter a secure state and save data before disconnecting the power supply. After AT^SMSO has been entered the MC35i Terminal returns the following result codes: ^SMSO: MS OFF OK ^SHUTDOWN The "^SHUTDOWN" result code indicates that the MC35i Terminal turns off in less than 1 second. After the shutdown procedure is complete the MC35i Terminal enters the POWER DOWN mode. The green status LED stops flashing (see Section for a detailed LED description). The RTC is still fed from the voltage regulator in the power supply ASIC. Emergency shutdown: In the event of software hang-ups etc. the MC35i Terminal can be switched off by applying a voltage >5V to the PD_IN pin (pin 3) for more than 3.5s. The PD_IN signal switches the MC35i Terminal off. All internal supply voltages are off, except for the power down voltage, which still feeds the real-time clock (RTC). Caution: Use the PD_IN pin only when, due to serious problems, the software is not responding for more than 5 seconds. Pulling the /PD pin causes the loss of all information stored in the volatile memory since power is cut off immediately. Therefore, this procedure is intended only for use in case of emergency, e.g. if MC35i Terminal fails to shut down properly. When the MC35i Terminal enters the POWER DOWN mode, e.g. after you have issued the AT^SMSO command or activated the PD_IN signal, all RS-232 interface lines are active for a period of 50ms to max. 3.5s. This may cause undefined characters to be transmitted on the RS-232 lines which can be ignored. MC35i_T_HD_v02.00an Page 21 of

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